Denon AVR-S510BT, Service Manual

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ADJUSTMENT
Adjusting Idling Current
1. Preparation
(1) Prepare a DC voltmeter.
(2) Place the unit under normal usage conditions, away from highly ventilated areas such as next to an air conditioning
machine or electric fan.
The set requires an ambient temperature of 15℃ to 30℃ (59 °F ~ 86 °F) and standard humidity.
(2) Presetting
• POWER (Power source switch) STANDBY
• SPEAKER (Speaker terminal) No load
(Do not connect equipment such as speakers or dummy resistors.)
2. Adjustment Procedure
(1) Remove the top cover and turn VR510(FL), VR550(FR), VR530(C), VR520(SL) and VR540(SR) of the MAIN PCB
counterclockwise(c) as far as possible.
(2) Connect DC Voltmeter to the test points.
FRONT-Lch : CN510
FRONT-Rch : CN550
CENTER ch : CN530
SURROUND-Lch : CN520
SURROUND-Rch : CN540
(3) Connect the power cord to an outlet. Next, press the power button to turn on the power.
(4) Set this unit as follows.
MASTER VOLUME : "---" (
c
min.) : turn counterclockwise to the lowest position.
SPEAKER (Speaker terminal) : No load
(Do not connect equipment such as speakers or dummy resistors.)
MODE : MCH STEREO
FUNCTION : CBL/SAT
(5) Turn VR510 clockwise (
x
) and adjust the voltage of the test point to "
1.5mV ± 0.5mV DC." within 2 minutes.
(6) 10 minutes after the preliminary adjustment, turn VR510 and set the voltage to "
2.0mV ± 0.5mV DC".
(7) Adjust the variable resistance of each channel using the same method.(VR520-VR550) .
CN540 VR540 VR510 CN510 VR520 CN520 VR530 CN530 VR550 CN550
F Lch S Lch
C ch
S Rch F Rch
DC Voltmeter
MAIN PCB
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